Changing magnetic fields can set up current loops in nearby metal bodies
Changing magnetic fields can set up current loops in nearby metal bodies and the currents are called as Options (a)…
7 years ago
Electromagnetic Induction
The phase difference between the flux linked with a coil rotating in a uniform
The phase difference between the flux linked with a coil rotating in a uniform magnetic field and induced emf produced…
7 years ago
The self-inductance of a coil having 500 turns is 50mH. The magnetic flux
The self-inductance of a coil having 500 turns is 50mH. The magnetic flux through the cross-sectional area of the coil…
7 years ago
For high frequency a capacity offers
For high frequency a capacity offers Options (a) Less reactance (b) More reactance (c) Zero reactance (d) Infinite reactance Correct…
7 years ago
A long solenoid has 500 turns. When a current of 2 ampere is passed through it
A long solenoid has 500 turns. When a current of 2 ampere is passed through it, the resulting magnetic flux…
7 years ago
In a coil having e.m.f. of 8 V induced for 0.05 s. The value of current changes
In a coil having e.m.f. of 8 V induced for 0.05 s. The value of current changes from 2 A…
7 years ago
A straight conductor of length 0.4 m is moved with a speed of 7 ms⁻¹perpendicular
A straight conductor of length 0.4 m is moved with a speed of 7 ms⁻¹perpendicular to a magnetic field of…
7 years ago
A straight conductor 0.1 m long moves in a uniform magnetic field 0.1 T.
A straight conductor 0.1 m long moves in a uniform magnetic field 0.1 T. The velocity of the conductor is…
7 years ago
A rectangular copper coil is placed in a uniform magnetic field of induction 40 mT
A rectangular copper coil is placed in a uniform magnetic field of induction 40 mT with its plane perpendicular to…
7 years ago
A metal conductor of length 1m rotates vertically about one of its ends at angular
A metal conductor of length 1m rotates vertically about one of its ends at angular velocity 5 radian per second.…
7 years ago